Furnace structure



Sept. 28 i926.

J. A. LODWICK FURNACE STRUCTURE Filed August 50, -1922 2 Sheets-Sheet l Witness.

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@btowe 5 Sept. 28 1926.

v J; A. LODWICK FURNACE STRUCTURE 2 Shets-Sheet 2 Filed August 30. 1922 t at JASON A. LODWICK, 0F PELHAM MANOR, NEW YORK, ASSIGNOR TO AMERICAN ARCH COMPANY, A CORPORATION OF DELAWARE.

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Application filed August so, 1922. Serial no. 585,147.

This invention relates to furnace structures andmore particularly to the arch,

nose-and curtain brick of the combustion chamber, and means for supporting the same. 7 v v One of the primary objects of my invention is the'p rovision of an improved means of supporting the nose of the arch so that the nose will automatically align itself with the arch; that is to say, accommodate itself to the angular disposition of the arch, in which connection the arches are sometimes disposed substantially horizontally and .at

other times at varylngangles.

Another object of the invention is to provide a support having the characteristics described, and by ;means of-which the nose, considered asaf fwhole, is supported independently of the" arch and by means of which, also, the bricks constituting the nose are also independently supported so that one or'more units thereof may be removed without disturbing the remaining bricks of the nose.

Still another object of my invention is the provision of a combined curtain and nose I rick supporting means whereby the curtain and nose brick, are supported independently of one another and the nose brick are permitltled to accommodate themselves to the arc I -The 'foregoin together with such other objects as may ereafter appear or are incident to my invention I obtain by means of a construction the preferred embodiments of which are shown in the accompanying drawwherein ving, I g igure 1 is a cross-section through a stoker-fired furnace, illustratingmy improvements;

Figure 2 is an enlarged section showing the curtain and nose brick and the means for supporting the same and also the end course of the main arch; and

Figure 3 is a section taken on the line 33 of Figure 2.

" Referring now to Figure 1, the reference letter A designates the main arch which comprises the courses of bricks (1,12, 0, d, and e, thebricks of the courses a, 0 and e being shouldered and provided with beads and being suspended by means of hangers 7 from. beams 8 of the furnace structural work." The-courses b and d are supported 6. curtain brick can be removed without from the bricksof the courses a, c an The nose is indicated as a whole by the imam per corners, the heads being adapted to be engaged by clip members 11, which are ivotally connected to the .T-shaped mem ers 12. These ,T-shaped members have their heads 12 slightly rounded and such heads I areadapted to fit in a key hole slot or opening 13 formed in the supporting member 14. The supporting members 14 are secured to. the transverse .L beam 15, of the supporting structure of the furnace, preferably detachably, as by means of the hook or nose 16, which is adapted to he slipped over the flange at the lower edge or baseof the beam.

By virtueof this arrangement the bricks of the nose can swing about the pivot bolts 11 by which the clips 11 are pivoted tothe T-shaped members 12 and thus automatically accommodate themselves to the main arch B. This arch, as heretofore pointed out, is sometimes horizontally disposed and at other times at various angles of inclination, but the pivotal support of the nose brick will always insure that the nose is brought into alignment with the 'niain arch. The p1votal support of the clips and the more or less pivotal engagement of the T-shaped members 12 in the key-hole slots afl'ords a suspension for the bricks which provides vsubstantially universal motion so that the bricks of the nose will not only accommodate themselves to the arch but may swing laterally somewhat.

The laterally rojecting supporting member 14 is provi ed with T-shaped head 17 at its outer end, affording pivotal support for the curtain bricks 18 of the curtain wall C. The curtain brick 18 is provided with a recess or aperture 19 so that it hooked over the T heads 17. From an inspection of Figure 3 it will be seen that a pair of the bricks 18 is supported on each T head 17. Thus the curtain bricks 18 and the nose brick 9 are supported and articulated independently of one another (and. of the arch) on combined supporting means so that either the curtain brick or the nose brick may be removed for purposes of relacement without disturbing the other bricks, and damaged nose brick or dama ed may be turbing the remaining nose brick or curtain brick.

The gap between the main portion of the curtain wall C, resting on the cross beam 16 and the curtain bricks 18 in front of said beam 15 is closed by one or more rows of curtain bricks 20. To remove one or more cf the curtain bricks 18 the joint between the bricks 18 and the respective bricks 20 is cracked and the latter are removed, which affords opportunity "for slipping off the damaged bricks 18 from their supporting heads 17.

The supporting means is protected from the heat and is accessible from the front, and the arrangement in addition to having the advantages heretofore noted is such that the bricks may be readily installed. Other advantages will occur to those skilled in the art.

I claim:

1. A construction of the character described comprising an arch, anose supported independently and automatically self-accommodating to the angular. arrangement of the arch, and curtain brick supported independently of the nose but automatically selfaccommodating thereto.

2. A construction of the character described comprising an arch, a nose. a superjacent refractory curtain brick. said nose and said curtain brick being independently articulated for self-adjustment lengthwise of the furnace.

3. A furnace arch construction of the character described comprising, in combination with the supporting structure of the furnace, a supporting member carried themby, a nose brick pivotally supported from said member, and a curtain brick also pivotally supported from said member.

4;. A furnace arch construction of the character described comprising, in combination with a cross-beam of the furnace, a laterally projecting supporting member mounted on its lower edge, a nose brick suspended from said member, and a curtain. brick resting on said member in front of the cross-beam.

5. A furnace arch construction of the character described comprising. in combination with a cross-beam of the furnace, a laterally projecting supporting member mounted on its lower edge, a curtain brick pivoted on the outer end of said member,

wearer.

brick normally engaging said member, but detachable by movement lengthwise or the beam.

71A furnace arch construction of the character described comprising, in combination with a cross-beam of the furnace. a supporting member carried thereby, a nose brick suspended from said member, a curtain brick resting on said supporting member in front of said cross-beam, a curtain wall resting on said cross-beam, and refractory brick in front of said beam betweipn said curtain brick and said curtain wa 8. In furnace structures, an arch no:e

brick supporting means including a member adapted to be attached to structural work of the furnace, a member detachably carried thereby, and brick engaging means pivotally secured to said second member, said first -7 member being provided with means for supporting curtain brick.

9. In furnme structures, an arch nose brick supporting means including a member adapted to be attached to structural work of the furnace, a member detachably carried thereby. and brick engaging means pivotally secured to said second member, one of said members being adapted to support curtain brick.

10. In furnace structures. a combined curtain and nose brick supporting member, adapted to support the curtain and nose brick independently the one of the other and the nose brick pivotally.

11. In furnace structures, an arch nose brick support including a beam, a member detachably carried thereby and provided with a keyhole slot, a T-shaped member fit-v ting said slot, and brick engaging means secured to said T-shaped member.

In testimony whereof I have hereunto signed my name.

JASON A. LODWICI'. 

